Apparatus for feeding sheets of paper to printing-machines, calendering-machines, folding-machines, &amp;c.



IIo. 689,005. Patented Dec. I7, I90I.

M. KOENIG.

APPARATUS FOR FEEDING SHEETS OF PAPER T0 PRINTING MACHINES, CALENDEBING MACHINES, FOLDING MACHINES, 81.0.

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No. 689,005. Patented Dec. l7, IQIII. m. KOENIG.

APPARATUS FOR FEEDING SHEETS OF-PAPER T0 PRINTING MACHINES, GAL ENDERING MACHINES, FOLDING MACHINES, &c.

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APPARATUS FOR FEEDING SHEETS OF PAPER T0 PRINTING MACHINES, CALENIIERING MACHINES, FOLDING MACHINES, 6w.

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UNITED STATES MAX KOENIG, OF GUBEN, GERMANY, ASSIGNOR TO KOENIGS BOGENAN- LEGER GESELLSOHAFT MIT BESCHRANKTER I-IAFTUNG, OF GUJBEN,

PRUSSIA, GERMANY.

APPARATUS FOR FEEDING SHEETS OF PAPER T0 PRINTING-MACHINES, CALENDERlNG-MACHINES, FOLDING-MACHINES, dc.

SPEGIFECATION forming part of Letters Patent No. 689,005, dated December 17, 1901.

Application filed August 9, 1900. Serial No. 26,321. (No model.)

To all whom it may concern:

Be it known that I, MAX KOENIG, a subject of the Emperor of Germany, residingat Guben, in the Province of Brandenburg, Germany, have invented new and useful Apparatus for Feeding Sheets to Printing-Machines, &c., of which the following is a specification.

The object of my invention is to provide feeding mechanism by which sheets are fed reliably and evenly into printing-machines; and it consists of a rotatable feeding device located centrally above the sheets to be fed and arresting devices at each side of said feeding device. The arresting devices are arranged to stop the feeding device instantly and as soon as the sheet has been fed the proper distance and lies with its front edge in the'required position. The arresting devices and the controlling means of the feed ing device are actuated either by electricity, pneumatical means, orby mechanical devices, as hereinafter described.

My invention will be more fully understood when taken in connection with the accompanying drawings, forming part hereof, and in which- I Figure 1 is a top view of a feeding device in which the arresting devices are manipulated by means of rods controlled by electromagnets and a rotary cam to reset and release the said arresting devices, the various mechanism contact-springs being shown in position just before the edge of the paper reaches the desired position'and before the circuits to the two magnets are closed by contact-springs actuated by the edge of the sheet of the paper. Fig. 2 is a similar view showing the circuits closed at the contact-springs operated by the sheet of paper, but broken at the circuitsprings bearing on the rods of the arresting devices." Fig. 3 is a transverse View of one of the presser-tips operated from the arresting devices. Fig. 4 is a longitudinal elevation of the same. Fig. 5 shows a top view of a feeding device in which the arresting devices are manipulated by pneumatical means instead of electricity, as in Fig. 1. Fig. 6 shows piston-valve-operating mechanism controlled by the sheet of paper as it has been fed or moved into the proper position. Fig. 7 is a top view of a feeding device in which the arresting devices and the controlling means of the rotary feed are operated by mechanism actuated by the sheet of paper when obtaining its proper position. Fig. 8 is a transverse view showing the mechanical means for controlling the arresting and feeding devices. Fig. 9 is a transverse view of the rotary feed located above and in the center of the feed-table. Fig. 10 is a longitudinal section of the rotary feed shown in Figs. 1, 2, 5, 7, and 9. Fig. 11 is a vertical transverse section of the mechanism illustrated in Figs. 7 and 8 and showing the feeding of the sheets into feedrolls and bands leading to the printing-machine, and Fig. 12 is a similar section of the mechanism illustrated in Figs. 1 and 2.

Referring now to the drawings fora further description of my invention and more especially to Figs. 1 to i, a is the sheet to be fed,

and the edge or thereof when moved by the rotating friction-tips c on the shaft Z) presses the electrical contacts d and 61 against the contacts d and (1 closing circuits through the magnets (Z and d which instantly throws the feeding mechanism out of gear, leaving the sheet in the desired position for further manipulation, as hereinafter described. The friction-tips c are bent and pivoted at 72 to a disk 17, loosely mounted on the shaft Z), and their inner projections are slotted to engage pins 7 on a disk 8, which latter is capable of rotating on a hub of the disk 17. A spring 9 is fastened with one end to the disk 17 and with the other to a pin on the disk 8, so that the friction-tips c are rendered resilient and adjust themselves when coming into contact;

One side of the disk l'Zis. provided with teeth, and a sliding clutch 32 with the paper.

which are actuated from a lever 122, hinged at 123 to the machine-frame. The free end of this lever 122 is provided with a roller 124, contacting with a face-cam, which is driven from the shaft 1) by gears 126. Near the lefthand ends of the shifting rods 103 and 104 are provided collars 118, insulated from the rods 103 and 104 by the bushings 117 for a purpose to be described. Levers 109 and 110, fulcrumed at 111 and 112, respectively, are hinged to the rods 103 and 104, and springs 108 maintain the ball-shaped ends of the rods 103 and 104 in contact with the lever 122. Electromagnets 61* and d having arniatures 113 and 114 and circuit-springs 119 120, are included in an electric circuit of any source B, and the armatures 113 114 are adapted to lock and release the rods 103 104, as will be further described. Each of the rods 103 104 operate a presser-tip 100, Figs.3 and 4, mounted on a bell-crank lever 2, hinged at 101 to arms 106 107 on the rod 105 in order that when the sheet has been fed the proper distance it may be held in place by the presser-tips 100.

The operation of the apparatus for feeding sheets to printing-machines is as follows: The shaft 1) is rotating in the direction of the arrow in Fig. 1, and as the clutch 32 is in engagement with the disk 17 the friction-tips c are rotated and shift the sheet of paper a toward the contacts d and d which latter are actuated only by the edge a, of the sheet a to be fed, and as long as they are away from the contacts 01' and d the circuits are broken at these points only. The rods 103 104 are shifted by the cam 125 toward the right and held in this position by the armatnres 113 114, while the cam 125 is further rotated, leaving the lever 122 influenced by the spring 121 to move toward the machine-frame. The pressertips 100 in these positions of the rods 103 104 are away from the paper, and the contactsprings 119 120 are included in the circuit by the collars 118. If now the paper edge a strikes, for instance, the contact at and presses it against the contact 61 the circuit through magnet d is closed, the armature 113 is attracted, and the rod 104 through its spring 108 is moved toward the left, causing the pressertip 100 on the arm 106 to come into contact with the paper and hold the left-hand end thereof in place, while the friction-tips c still rotate to push the right-hand end of the paper against the contact (1 which closes the circuit through the magnet d The armature 114 is thereby attracted and the rod 103 also moves toward the left, causing the presser-tips 100 on the arm 107 to engage and hold the paper at its right-hand end. It will be understood that both contacts d and d may be pressed simultaneously against the contacts d and d and both magnets d and (Z respond at the same time and release the rods 103 and 104. At anyrate after both rods 103 and 104 are moved toward the left the sheet of paper is held by the presser-tips 100, and the clutch 32 disengages from the disk 17, leaving the frictiontips 0 at a standstill. At these positions of the rods 103 104, Fig. 2, the circuits are closed at the contacts cl, d, 01 and d but broken at the springs 119 120 and collars 118. As the shaft b and the cam 125 are rotated continuously, the high part of the cam forces the rods 103 104 in the positions as shown in Figs. 1, 5, and 7, whereby the pressure-tips 100 are lifted from the upper sheet of paper, and the clutch 32 is again brought into engagement with the disk 17 to feed the sheet into the belt or other food 5, Figs. 11 and 12. The contact-springs cl, d, (1 and (1 Fig. 12, or levers 20, Fig. 11, will be swung out of the way by the edge of the sheet, and the latter will enter the belt-feed 5, as clearly shown in Figs. 11 and 12. While the feeding of the sheetinto the machineis going on the springs (Z, d, (Z and (Z are in contact; but the pres sure-tips 100, as well as the clutch 32, are not affected by the electromagnets, because the rods 103 104 are held in the position shown in Fig. 1 by the lever 122 and cam 125. After the sheet of paper has been feed int-o the belt-feeder the con tact-springs d, d, (P, and d swing into their normal position and break contact. The friction-tips 0 will then oper= ate on the next sheet, and the high part of the cam 125 will have moved away from the lever 122, so that the rods 103 104 may be influenced by the electromagnets, as before described.

It may be remarked that the contact-springs (Zand d are very sensitive, while the other springs cl and d are rather stiff. All of the springs d, 61, d and d are mounted on a rod 3, Fig. 12, which is mounted in suitable bearings to allow of the swinging of the springs for the purposes before described.

Instead of using electrical devices to release the rods 103 104 pneumatic devices may be used, as shown in Fig. 5, in which 24 is a suction-pipe leading to valve-chambers 22. In these chambers are located valve-pistons 21, having a bore 25, and these valve-pistons are operated by the levers 20, Fig. 6, and connecting-links 23. Near the levers 113 114 and connected therewith are pistons 28, moving in cylinders 27, which are connected by means of pipes 26 to the valve-chambers 22. The operation of these devices is the same as with the electrical devicest'. 6., the edge a of the paper a pressing against the lever operates the valve-piston 21, so that pipe 24 communicates with pipe 26 through the bore of the piston 21. The piston 28 is thereby drawn into the cylinder 27, and the corresponding arm 113 or 114 releases its rod 104 or 103.

In Figs. 7 and 8is shown another device for releasing the rods 103 104. In this construction rock-shafts 127 are suitably journaled in the machine-frame or parts thereof, and arms 30, 128, and 129 are fastened thereto in radial positions, as shown in Fig. 8. Levers 20, with lugs 29, are hinged at 19 to the machineframe and are actuated by the edge a of the paper. The arm rests on the lug 29 of a lever 20, and when the paper moves the latter a spring attached to the arm 128 rocks the shaft 127 and pulls the lever 113 or 114, or both, as the case may be, by means of the links 31 toward the rock-shaft 127 and releases the rod 104:. To release the rod 103, another rook-shaft 131, with arms 132, is pro vided, and while the one at the right-hand end is pointing: upward from the shaft the other is pointing downward, so that the arm 114 will be moved toward the rock-shaft 131 in order to release the rod 103. To reset the arms 30 on the lugs 29, cams 34 are fastened to the shaft 130, on which also the face-cam 125, already described, is attached.

It will be understood by those skilled in the art to which my invention appertains that modifications may be made without depart ing from the spirit of the invention, and,

Having thus described the nature and objects of my invention,what Iclaim as new,and desire to secure by Letters Patent, is-

1. In apparatus for feeding sheets to printing-machines, a bed on which the sheets rest, a rotatable shaft located above the same, a disk having friction-tips loosely mounted on said shaft, a clutch on said shaft and adapted to engage the said disk, two shifting rods, presser-tips operated by said rods, means for shifting the said rods against the action of springs, means for locking the said rods and means actuated by the edge of the moving sheet to release the locked rods, substantially as and for the purposes set forth.

2. In apparatus for feeding sheets to printing-machines, a bed on which the sheets of paper rest, a rotatable shaft located above the same, a disk having friction tips loosely mounted on said shaft, a clutch on said shaft and adapted to engage the said disk,two shifting rods, presser-tips operated by said rods, a lever hinged to the machine-frame,said rods hinged to the said lever, a cam driven from to release the said rods, substantially as and for the purpose set forth.

3. In apparatus for feeding sheets to printing-machines, a bed on which the sheets of paper rest, a rotatable shaft located above the same, a disk loosely mounted on said shaft, resilient friction-tips on said disk, a clutch on said shaft and adapted to connect said disk with said shaft, two shifting rods, a pressertip operated from each of the said shifting rods, a lever hinged to the machine-frame and connecting with the said rods, a cam adapted to shift the said rods against the action of springs, collars on said rods to shift the said clutch into action, an electromagnet with armature for each of the said rods, an electric circuit for each magnet, contactsprings included in each of said circuits, an insulated collar on each of said rods for the said springs, and a pair of contacts at each end of the said bed, substantially as and for the purposes set forth.

4. In an apparatus for feeding sheets to printing-machines, a device for moving the sheets by friction-tips, consisting of a rotatable disk, friction-tips pivoted to said disk, slots in said friction-tips, a disk mounted on the hub of said rotatable disk, pins in said disk engaging said slots, and a spring attached with one end to said rotatable disk and with the other to the said disk, substantially as and for the purposes set forth.

In Witness whereof I have hereunto set my hand in presence of two witnesses.

MAX KOENIG.

Witnesses A. ABNER, F. J. DIETZMAN. 

